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Couples Hoping for a Baby Born on 11/11/11 Need to Get Busy, Now

Feb 17, 2011 – 12:38 PM
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Rebecca Delaney

AOL News
Break out the candles, romantic music and a bottle of wine, and put away the birth control. For couples hoping for a baby with the century's most memorable birthday, 11/11/11, Friday's the day to conceive. The next date with the same six numbers will be Nov. 11, 2111.

For women with a regular 28-day menstrual cycle, this week, ending tomorrow, is prime baby-making time, but there are several factors that determine a baby's birthday. Experts warn that conception on Friday doesn't definitively ensure an 11/11/11 baby.

"There's absolutely no guarantee," Rhonda Gannon, a nurse at Boston IVF in Waltham, Mass., told AOL News.
Newborn babies in hospital nursery. Danbury, Conn. (Blaine Harrington III, Alamy)
Blaine Harrington III, Alamy
Newborn babies are shown in a hospital nursery in Danbury, Conn. For couples hoping for a baby to be born on 11/11/11, Friday's the day to conceive.

She acknowledges that for women whose last menstrual period was Feb. 4, tomorrow is most likely an ovulation day, making it the perfect time to conceive for a baby due in mid-November.

The calculations for an 11/11/11 baby also presume a 40-week gestation period, which, most parents and obstetricians can tell you, isn't always the case.

Dr. Joe Hill, an obstetrician/gynecologist and fertility expert with the New England Fertility Centers in Portsmouth, N.H., says due dates are an estimate of the baby's arrival, not an absolute.

"Most times, it's a day or two on either side of the due date," Hill told AOL News. "Only the baby knows for sure."

Gannon says her first son was born five weeks early, and her second son arrived two weeks before his due date.

For those who have their hearts set on a specific birthdate, the odds aren't bad. Those under 35, Hill said, have a 1 in 5 chance. Mama wannabes over 35 have a 10 percent chance.

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However, another factor that could throw a wrench into a couple's plans for an 11/11/11 baby is if they conceive twins, says Hill. Twins are typically considered full term at 38 weeks, and the mother is usually induced early to prevent complications.

While Hill says he has had patients ask when to conceive to have a child with a certain astrological sign, he hasn't had patients ask him about conceiving a baby to be born on a specific date, such as 11/11.

"Most people just want to have a healthy baby," he said. Which, whether he or she is born on Nov. 11 or Nov. 12, is really all that matters.

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